Heterocyclic amines (HCAs), potent mutagens and a risk factor for human cancers, are produced in meats cooked at high temperature. The aim of this study was to determine the HCA content in cooked meat products (beef, ...

Parasitoids can be conditioned to respond to novel odors through associative learning, and learning can be sensitive to physiological state. This study examined the effects of various types of sugar, and two physiological ...

Omitting the vitamin and trace mineral premixes and(or) adding 2/3 less supplemental
inorganic phosphorus source (from .55%
down to .40% total P) to diets during late
finishing (191 to 265 lb) had no effect on
growth ...

Omitting the vitamin and trace mineralpremixes and(or) adding 2/3 less supplementalinorganic phosphorus source (from .55% down to .40% total P) to diets during late finishing (191 to 265 lb) had no effect ongrowth performance, ...

A trial was conducted to evaluate the influence of diet composition and type
of medication on pigs weaned at approximately 5 weeks of age (average initial
weight of 15 pounds). A commercial feeding program containing ...

The soybean aphid (Aphis glycines Matsumura) is a threat to soybean production in the
Midwestern United States. Varieties containing the Rag1 soybean aphid resistance gene have been released with limited success in reducing ...

Primiparous and multiparous sows received a single dietary supplement of L-tyrosine in
their feed on the day after weaning, and the
effects on various reproductive traits were
evaluated. Sows received either none (control; ...

Low profile cross ventilated freestall buildings are one option for dairy cattle housing. These
facilities allow producers to control the cows’ environment during all seasons of the year. As a
result, an environment ...

Three experiments were conducted to determine
effects of ractopamine-HCl, sold under the trade name Optaflexx, on rumen fermentation.
In experiment 1, fermentative gas production was measured in vitro to determine the ...

Two hundred forty weanling pigs (initially
7.2 lb BW and 9 + 1 d of age) were used to compare four dietary sequences of three diets in a 21-d growth trial. Diet A was formulated to contain 1.7% lysine and
contained 7.5% ...

The economic impact of alternative sowculling
strategies was examined by simulating costs and returns for a farrowing-to-weaning swine operation. Culling strategies considered
were to sell sows after parity 1 (P1) ...

A total of 210 nursery pigs (initially 19.6
lb and approximately 28 d of age) were used
in a 21-d growth assay to determine the optimal ratio of valine to lysine to maximize
growth performance. The seven treatments
consisted ...

A total of 210 pigs (initially 18.2 lb and
25 d of age) were used in a 21-d growth assay. The seven treatments consisted of a
basal diet (14.1% CP) with increasing levels
of threonine (45, 50, 55, 60, 65, and 70% of
1.07% ...

A total of 360 pigs (initially 22.2 lb and 31
d of age) was used in a 21-d growth assay. This trial was conducted as a combination of
two separate trials in order to simultaneously examine both the true ileal digestible ...